This act is split into two parts: 1) The barbershop scene in which the plot to go after Will Mayes is hatched; and 2) The foray into Minnie Cooper's past, and the details of her present existence.
The second act is likewise divided into two parts: 1) Will's abduction and Hawkshaw's leap from the moving car; and 2) Minnie's walk through town, her breakdown in the movie theatre, and the subsequent laughing-screaming fit she has when back in her bedroom.
The drama ends on an ugly note in Act 3, wherein McLendon arrives home at midnight and physically and psychologically abuses his wife, a character we meet for the first time at the end of the story.